Optimal LCL-filter study for buck-boost inverter based on unfolding circuitMatiushkin, Oleksandr; Husev, Oleksandr; Vinnikov, Dmitri; Roncero-Clemente, CarlosProceedings : 2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG) : Online - Setúbal, Portugal, 08 - 10 July, 20202020 / p. 467-472 : ill https://doi.org/10.1109/CPE-POWERENG48600.2020.9161683